The nation's weather

AP News
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Posted: Dec 29, 2009 4:48 AM

A quiet weather day was expected for most of the U.S. on Tuesday. A strong low pressure system was forecast to continue pushing northeastward and exit the Northeastern U.S. by nightfall. Light and scattered snowfall associated with the system was expected to persist throughout the day but with accumulation much less than Monday.

Between 1 and 3 inches of snow was forecast for the extreme Northeast with strong winds gusting up to 30 mph. The Ohio River Valley was expected to see less than a half of an inch of residual flurries. High temperatures were expected to remain in the 20s and 30s in most of the Northeast and New England.

In the Central and Southern U.S., a large area of high pressure was expected to continue building in from the West. Flow around the system could pull cold air in from Canada and allow for wind chills dropping into the single digits over the North. The Upper Midwest could see highs in the teens, but due to strong and blustery winds, wind chills were expected to drop to between negative 7 to negative 17.

To the south, a low pressure system was forecast to develop over the Southwest and pull Pacific moisture into the region. It was expected to create enough energy with cool conditions to trigger light and scattered snow over the Southern Rockies that could move into Texas throughout the day. A winter storm warning was issued over the areas with snowfall accumulation expected to range between 2 and 4 inches. Highs were expected to remain in the 30s to lower 40s in most areas.

Farther West, another cool and cloudy day was expected over the West Coast on Tuesday as a low pressure system remained just offshore.

On Monday, temperatures in the Lower 48 states ranged from a low of -20 degrees at Laramie, Wyo., to a high of 75 degrees at Kendall, Fla.